MPI_Unpack: fix error code when insize <= 0

ggouaillardet · ggouaillardet · commit 729c54f0092a · 2017-03-02T09:25:00.000+09:00
this fixes a regression from f2e33c7 (cherry picked from commit 7b803ac)
diff --git a/ompi/mpi/c/unpack.c b/ompi/mpi/c/unpack.c
@@ -99,6 +99,8 @@ int MPI_Unpack(const void *inbuf, int insize, int *position,
         rc = opal_convertor_unpack( &local_convertor, &outvec, &iov_count, &size );
         *position += size;
         OBJ_DESTRUCT( &local_convertor );
+    } else {
+        rc = 1;
     }
 
     /* All done.  Note that the convertor returns 1 upon success, not

Original file line number	Diff line number	Diff line change
`@@ -99,6 +99,8 @@ int MPI_Unpack(const void inbuf, int insize, int position,`
`99`	`99`	`rc = opal_convertor_unpack( &local_convertor, &outvec, &iov_count, &size );`
`100`	`100`	`*position += size;`
`101`	`101`	`OBJ_DESTRUCT( &local_convertor );`
	`102`	`+ } else {`
	`103`	`+ rc = 1;`
`102`	`104`	`}`
`103`	`105`
`104`	`106`	`/* All done. Note that the convertor returns 1 upon success, not`